4th BATTALION,6th INFANTRY REGIMENT

Constituted 11 January 1812 in the Regular Army as a company of the 11th Infantry

Organized March–May 1812 in Vermont, New Hampshire, or Connecticut

Consolidated May–October 1815 with a company of the 25th Infantry (constituted
26 June 1812) and a company each of the 27th, 29th, and 37th Infantry (all constituted
29 January 1813) to form a company of the 6th Infantry

(6th Infantry assigned 18 November 1917 to the 5th Division; relieved in August 1921 from assignment to the 5th Division; assigned 24 March 1923 to the 6th Division; relieved
16 October 1939 from assignment to the 6th Division)

Reorganized 15 July 1940 as Company D, 6th Infantry (Armored), an element of the 1st Armored Division

Redesignated 1 January 1942 as Company D, 6th Armored Infantry, an element of the 1st Armored Division

Reorganized and redesignated 20 July 1944 as Company A, 11th Armored Infantry Battalion, an element of the 1st Armored Division

Converted and redesignated 1 May 1946 as Troop A, 11th Constabulary Squadron, an element of the 1st Constabulary Regiment

Reorganized and redesignated 1 April 1963 as the 4th Battalion, 6th Infantry

Inactivated 31 December 1965 at St. Louis, Missouri

Withdrawn 13 September 1972 from the Army Reserve, allotted to the Regular Army, relieved from assignment to the 102d Infantry Division, and assigned to the United States Army Berlin Brigade; concurrently activated in Germany

Inactivated 29 June 1984 in Germany, and relieved from assignment to the Berlin Brigade

Assigned 1 August 1984 to the 5th Infantry Division and activated at Fort Polk, Louisiana

Inactivated 16 December 1992 at Fort Polk, Louisiana, and relieved from assignment to the 5th Infantry Division